* {
    overflow-x: visible;
}

main {
    margin: 47px 20px 0px 20px;
    display: flex;
    justify-content: space-around;
}

.content {
    width: 78%;
}

.side-nav {
    width: 20%;
}

#article-header {
    font-size: 50px;
    font-weight: 900;
}

.side-nav {
    margin-top: 8px;
    position: sticky;
    top: 0;
    align-self: flex-start;
}

.side-nav h4 {
    font-size: 25px;
    font-weight: 600;
    margin-top: 8px;
    padding: 4px;
}

.side-nav ul li {
    font-size: 20px;
    font-weight: 600;
    margin-left: 40px;
    padding: 4px;
}

.side-nav h4:hover {
    background-color: #05386b;
    color: #edf5e1;
}

.side-nav ul li:hover {
    background-color: #05386b;
    color: #edf5e1;
}


.side-nav .active {
    background-color: #05386b;
    color: #edf5e1;
}

.intro-text {
    margin-top: 32px;
    font-weight: 20px;
    width: 957px;
}

.banner-image {
    margin-top: 21px;
    width: 957px;
    height: 390px;
}

.under-image-paragraph {
    font-weight: 18px;
    margin-top: 37px;
    width: 957px;
}

.part-header {
    margin-bottom: 37px;
    margin-top: 67px;
    font-size: 36px;
}

.sub-article-title {
    margin-bottom: 20px;
    font-size: 24px;
}

.reason {
    display: flex;
    align-items: center;
    margin-bottom: 57px;
    justify-content: flex-start;
}

.reson-description {
    font-size: 18px;
    line-height: 31px;
    margin-left: 19px;
    width: 576px;
}

.second-part .reason {
    flex-direction: column;
}

.second-part .reson-description {
    line-height: 31px;
    margin-left: 0;
    width: 969px;
}

.second-part .reason {
    align-items: flex-start;
}

.problem {
    margin-top: 15px;
}

.solution {
    margin-top: 15px;
    width: inherit;
}

.sidenav-link {
    color: #05386b;
}

.first-part .reason:nth-of-type(2) {
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.first-part .reason:nth-of-type(2) > p {
    margin-right: 19px;
    margin-left: 0;
}

.first-part-image {
    width: 361px;
    height: 273px;
}

.second-part-image {
    width: 969px;
    height: 316px;
}